package demo01;

import java.io.*;
import java.net.Inet4Address;
import java.net.InetSocketAddress;
import java.net.Socket;

/**
 * @Author:Mrzhang
 * @Description:模拟客户端
 * @Date:2019.01.20 16:44
 **/
public class Client {

    public static void main(String[] args) throws IOException {
        Socket socket = new Socket();
        //超时时间
        socket.setSoTimeout(3000);

        //连接本地地址，端口 2000，超时3000ms
        socket.connect(new InetSocketAddress(Inet4Address.getLocalHost(), 2000), 3000);

        System.out.println("已发起服务器连接，并进入后续流程~");

        System.out.println("客户端信息：" + socket.getLocalAddress() + "   port:" + socket.getLocalPort());

        System.out.println("服务器信息：" + socket.getInetAddress() + "    port:" + socket.getPort());

        try {
            //发送接收数据
            todo(socket);
        } catch (Exception e) {
            System.out.println("异常关闭");
        }

        socket.close();
        System.out.println("客户端已退出");
    }

    /**
     * 发送数据
     *
     * @param client
     * @throws IOException
     */
    private static void todo(Socket client) throws IOException {
        //构建键盘输入流
        InputStream in = System.in;
        BufferedReader input = new BufferedReader(new InputStreamReader(in));

        //得到Socket输出流，并转换为打印流
        OutputStream outputStream = client.getOutputStream();
        PrintStream socketPrintStream = new PrintStream(outputStream);

        //得到socket输入流,并转换为BufferedReader
        InputStream inputStream = client.getInputStream();
        BufferedReader socketBufferedReader = new BufferedReader(new InputStreamReader(inputStream));


        boolean flag = true;
        do {
            //键盘读取一行
            String line = input.readLine();
            //发送到服务器
            socketPrintStream.println(line);

            //从服务器读取一行
            String echo = socketBufferedReader.readLine();
            if ("bye".equalsIgnoreCase(echo)) {
                flag = false;
            } else {
                //将服务器返回数据打印
                System.out.println(echo);
            }
        } while (flag);

        //资源释放
        socketPrintStream.close();
        socketBufferedReader.close();
    }
}
